Vibrator-regulator.



PAT ENTED MAR. 14, 1905.

, G F SPLITDORF VIBRATOR REGULATOR. APPLICATION EILED JAN. 23. 1904. RENEWED JAN. 24, 1905.

' w i/lm -gwaa iin f Patented March 14, 1905.

NITED STATES PATENT OFFICE.

CHARLES F. SPLITDORF, OF NEW YORK, N. Y.

VIBRATOR-REGULATOR.

SPECIFICATION forming part of Letters Patent No. 785,056, dated March 14:, 1905.

Application filed January 23, 1904. Renewed January 24, 1905. Serial No. 242,563.

To aZZ whom it may concern.-

a resident of the borough of Manhattan, in

the city, county, and State of New York, have invented certain new and useful Improve: ments in Vibrator-Regulators, of which the following is a specification. f

This invention relates to a novel means of regulating and adjusting the tension of vibrators or interrupters for induction-coils; and I my invention is herein shown and described as applied in con unction with the strip or ribbon-spring vibrator forming the subject of a concurrent application herewith.

In brief, my invention consists of a regulating-screw passed into a threaded support and having a diminished end that engages with a spring whose opposite end is rigidly held, said screw having a knurled head by which it may be turned and also having a series of corrugations arranged around its periphery, together with a ball or other rolling body tensionally held part way within one of said corrugations to determine and set or look the position of the regulating-screw, but said ball or rolling body being capable of rolling into an adjacent corrugation upon the application of suflioient turning pressure to said screw to expand the tension a1 support for said ball or rolling body and enable the latter to pass over the dividing-wall.

In the drawings accompanying this application, Figure 1. Fig. 2 is a central section taken through the regulating and adjusting mechanism. Fig. 3 is a view taken on the" line X X of Fig. 2, and Fig. 4: is a plan view of one of the spring-leaves.

The letter A indicates a coil-casing, and B the core of the coil, forming an electromagnet. Mounted upon the casing A is the usual bridge C, carrying the adjusting-screw D, provided with the contact-point (Z. An armature, as E, is secured at one end to a mount, as F, and is supported in the field of the electromagnet, as usual. The movable contact, as

g, is borne by a ribbon or strip of thin sheet metal, as G, which latter is located between the adjusting-screw and armature, being secured at one end to a rigid mount, as g, its

of spring Gr, a convex bearing-surface, as 0,

being formed in said recess for said spring. A plate, as H, is secured upon mount F to serve as'a guide for spring G, and said plate has a rearward extension I, provided with a threaded aperture in which is placed a screw I, whose diminished i enters a hole 9 in the extremity of spring Gr. Thus the spring G is held between mount 9 and screw I, and the tension of said spring may be regulated by turning said screw 1. Turning the screw I in one direction has the elTect of depressing the end of spring G that projects beyond the mount F, thereby drawing said spring taut and giving it a requisite degree of tension, while turning the screw in the other direction serves to relax such tension.

A stud J, having'a head j, is mounted upon the armature E and is adapted to protrude through a slot 9 in spring Gr, being entered through an enlargement of said slot and operatively adjusted, so that said spring is in the path ofsaid stud-head j, to be hammered thereby in the movement of the armature when attracted by the electromagnet.

The screw I is provided with an enlarged portion bearing a series of longitudinal depressions or corrugations K, arranged about its periphery, and a .ball 76, of steel or other hard substance, is tensionally held in one of said depressions or corrugations. The tensional support referred to consists of two spring-leaves I0 I0 placed together and secured at oneside to the edge of extension It, while at an opposite point said. spring-leaves are tensionally separated by the ball 79, which is held within opposite circular orifices formed in both said leaves. Said ball is, projecting through one or both the orifices in said leaves k is held tensionally by said spring-leaves within one of the depressions or corrugations K, thus forming a set or look for screw I; but by the exertion of sufficient force in turning the screw I, the operator grasping its said ball k forms a positive lock for the screw 1, which look cannot loosen through vibration or otherwise accidentally, a very durable locking device is provided through the absence of frictional Wear in its manipulation, and it is furthermore operated with the greatest case.

As is obvious, a roller or other turnable body might be substituted for the ball it, in such case corresponding bearings of course being provided in the leaves is I claim 1. A tension-regulator for vibrators or interrupter-s comprising a screw member and threaded support therefor, said screw member bearing a series of peripheral depressions; together with a lock for said screw member comprising a circular body tensionally held in one of said depressions and adapted to roll into an adjacent depression upon the application of turning force to said screw.

2. A turnable body having an annular series of depressions together with means for locking said body in a set position, said means comprising a circular body held between two spring-leaves and protruding through an orifice in one of said leaves into one of said depressions.

Signed at New York this 19th day of J anuary, 1904:-

CHARLES F. SPLITDORF.

Witnesses:

F. W. BARKER, FREDERICK U. BONNY. 

